申请人:NITTO DENKO CORPORATION
公开号:US20180002337A1
公开(公告)日:2018-01-04
This disclosure is related to photo-stable chromophores which are useful in various applications. Chromophores disclosed herein include a bis-triazole core, two electron-donors at C-4 and C-8, and two groups derived from pentaerythritol (R═OR
5
) or 1,1,1-tris(hydroxymethyl)methane (R═H) at N-2 and N-6. Such structures have been proven to have greater then five times higher photo-stability than their analogs with simpler alkyl groups at N-2 and N-6.
这项披露涉及在各种应用中有用的光稳定的色团。这里披露的色团包括一个双三唑核心,C-4和C-8处的两个电子给体,以及N-2和N-6处源自对羟基甲基苯甲醇(R═OR5)或1,1,1-三(羟甲基)甲烷(R═H)的两个基团。这样的结构已被证明比其N-2和N-6处具有更简单烷基基团的类似物具有五倍以上的光稳定性。